ProphetesAI is thinking...
cogging
Answers
MindMap
Loading...
Sources
cogging
▪ I. cogging, vbl. n.1 (ˈkɒgɪŋ) [f. cog v.3 + -ing1.] The action of the verb cog3. a. Cheating at dice. b. Underhand dealing, deceit. c. Deceitful flattery; fawning.1532 [see cog v.3 1]. 1563–87 Foxe A. & M. (1596) 1143/2 The unhonest dealing and false cogging of these men. 1599 James I βασιλ. Δωρον...
Oxford English Dictionary
prophetes.ai
Cogging
Cogging may refer to:
Cogging torque, an undesirable component in the operation a motor
Forge cogging, successive deformation of a bar along its length
wikipedia.org
en.wikipedia.org
Cogging torque
Cogging torque results in torque as well as speed ripple; however, at high speed the motor moment of inertia filters out the effect of cogging torque. Reducing the cogging torque
A summary of techniques used for reducing cogging torque:
Skewing stator stack or magnets
Using fractional slots per pole
wikipedia.org
en.wikipedia.org
cogging-brick
cogging-brick [from likeness of the work to the cogs of a wheel or ratchet.] See quot.1703 T. N. City & C. Purch. 39 Cogging-bricks, a kind of Bricks..in use in some parts of Sussex to make their Toothing, or Indented Work under the Copeing of Walls.
Oxford English Dictionary
prophetes.ai
coggery
† ˈcoggery Obs. [f. as prec. + -ery.] The practice of cogging; deception, trickery; also, concr. a trick, deception.1602 W. Watson Quodlibets Relig. & State 195 (T.) This is a second false surmise or coggerie of the Jesuits. 1603 Harsnet Pop. Impost. 163 The children of lyes, coggeries, and Impostur...
Oxford English Dictionary
prophetes.ai
Inrunner
Because there is no magnetic iron core, ironless in runners have no cogging, in that they spin freely with no magnetic interaction when power is disconnected
wikipedia.org
en.wikipedia.org
cogged
▪ I. cogged, ppl. a.1 (kɒgd) [f. cog n.2 or v.1] 1. a. Furnished with cogs; having cog-wheels.1825 J. Nicholson Operat. Mechanic 654 A toothed rack..into which a toothed or cogged wheel..plays. 1862 Smiles Engineers III. 97 Cogwheels which acted on the cogged rail. 1879 Cath. & Craufurd Tait 561 The...
Oxford English Dictionary
prophetes.ai
Lavet-type stepping motor
Essential for the movement of the Lavet motor are the cogging points of the rotor, which differ depending on whether the stator coil is energized or unenergized The cogging points with no current are caused by reluctant force against a direct magnetic field, rather than retarding the propagation of an alternating
wikipedia.org
en.wikipedia.org
cog
▪ I. † cog, n.1 Obs. (exc. Hist.) Forms: 4 coge, kogge, 4–6 cogge, 4– cog. [ME. cogge, kogge (14th c.), corresponds in form and meaning alike to OF. cogue, (coge, koge, cogghe, guogue), also coque, a kind of ship, esp. ‘ship of war’ (Godefroy), and to MLG. kogge m. f., MDu. cogghe (Du. cogge, cog f....
Oxford English Dictionary
prophetes.ai
Winding factor
Also, either the stator or rotor may be slightly skewed from the rotor's axis to reduce cogging torque.
wikipedia.org
en.wikipedia.org
nyny
† nyny obs. variant of ninny1 or ninny2.1687 Cotton Poet. Wks. (1765) 55 This Cupid was a little Tiny Cogging, Lying, Peevish Nyny.
Oxford English Dictionary
prophetes.ai
Torque ripple
Examples
A common example is "cogging torque" due to slight asymmetries in the magnetic field generated by the motor windings, which causes variations
wikipedia.org
en.wikipedia.org
齿槽转矩
齿槽转矩(Cogging torque)也称为齿形转矩、磁卡转矩或无电流力矩,是永磁马达的转子磁铁和定子齿槽之间产生的力矩,在定子没有电流时就会出现。
简单的说就是因为马达内部磁场分布导致的磁阻力,齿槽转矩和转子位置有关,随著转子位置会有周期性的变化,周期则和定子齿槽、转子磁铁个数有关。 Delphi Steering, Saginaw, MI, USA "Issues in reducing the cogging torque of mass-produced permanent-magnet brushless DC motor".
wikipedia.org
zh.wikipedia.org
gnathonic
gnathonic, a. (neɪˈθɒnɪk) Also 7 gnatonick. [ad. L. Gnathōnicus, f. Gnathōn-em gnatho.] = gnathonical a.1637 Gillespie Eng. Pop. Cerem. Ep. A ij b, The gnathonick Parasite sweareth to all that this benefactor holdeth. 1652 Urquhart Jewel Wks. (1834) 276 Thinks no better of adulatory assentations the...
Oxford English Dictionary
prophetes.ai
Direct-drive mechanism
Most motors exhibit positional torque ripple known as cogging torque.
wikipedia.org
en.wikipedia.org